Electric motor-car



(No Model.)

J. P. SHAWHAN.

ELECTRIC MOTOR UAR.

Patented 00m. 14, 1890.

UNITED STATES PATENT OFFICE.

JABEA F. SHAl/VHAN, OF DETROIT, MICHIGAN, ASSIGNOR, BY DIRECT AN D MESNEASSIGNMENTS, TO THE SHAWVIIAN MOTOR COMPANY, OF MICHIGAN.

ELECTRIC MOTOR-CAR.

SPECIFICATION forming part of Letters Patent No. 438,192, dated October14, 1890.

Application filed May 10, 1890. Serial No. 351.339. (N model.)

' To all whom it may concern:

Be it known thatI, JABEA F. SHAWHAN, a 'citizen of the United States,residing at Detroit, Wayne county, State of Michigan, have inventedcertain new and useful Improvements in Electric Motor-Oars, of which thefollowing is a specification.

My invention is a motorcar especially adapted for electric railroads, inwhich secto ondary batteries are used to furnish the propelling power;and the object of the invention is to construct acheap, simple, light,and yet strong car, which shall have conveniences for rapidly and easilysupplying and charging the batteries; and to these ends my inventionconsists in a motor-car constructed and arranged substantially ashereinafter set forth.

Referring to the accompanying drawings, Figure 1 is a side View of a carembodying my invention. Fig. 2 is a plan view of a portion of the carwith thetop removed, showing the lower frame-work and the preferredmanner of applying the motor; and Fig. 3 is a detail. In the drawings Ihave shown the fourwheeled truck having wheels 1 secured to the axles 2,the ends of the axles running in axleboxes 3, supported in pedestals 4.These pedestals are connected by the equalizingbars 5, which are made inthe manner indicated in the drawings, and consist of plates of ironconnected together at their centers and branching at their ends andsecured to the upper and lower portions of the pedestals, being in theform of an elongated X. Also connecting thelower portions of thepedestals is a rod or bar 6, and between this bar and the double bar 5,I arrange suitable connectors, as 7, to strengthen the parts andmaintain them in their proper relations.

Mounted in suitable hangers depending from the bars 5 are thefriction-rollers 8, and these are arranged with their axes at rightangles to the axes of the car-wheels. These be done without interferingwith the runninggear or other portions of the motor-car.

As the batteries are quite heavy in themsevles, it is desirable to makethe frame of the motor-car as light as possible consistent withstrength, and I therefore make a skeleton frame of metal pipes or tubesand mount upon these tubes a suitable roof or covering.

In the construction shown there are four upright tubes 11 on each side,supportinga roof 6o 12. These tubes are fitted into suitable sockets inthe roof, being preferably screwed thereto in the usual manner.

In order that the base of the car-body may be sufficiently rigid andstrong,I use two sets of tubes, as shown more particularly in Fig.

2, and attach the ends of these two tubes to the same socket orhead-piece 13. These sockets, which are shown more in detail in Fig. 3,consist, essentially, of a block of cast metal or other similar materialhaving recesses for the reception of the tubefor instance, thehead-pieces 13 at the corners have two recesses on one side for thetubes 14 and 15 and on the other side at right angles thereto for thetubes 16 and 17. These tubes form the base of the frame, and they may beunited by tie-pieces or clamps 18 to assist in maintaining theirrequisite rigidity. .Also connected to the head-pieces at their outsideis a short tube 19 in the form of a T-joint, and secured to the underside of this joint are the short pipes 20, preferably headed at theirlower ends and arranged to support the step or running bar 21. Theupright bars 11 are attached to the outer portion of this T-joint, andwhile these uprights may extend out different distances I prefer tocarry them about five inches beyond the main side pieces 16 and 17, soas to give as wide a support for the 0 roof as is practicable. Thesemain side pieces 16 and 17 are divided in their center, leaving thespace between their ends for the reception of the battery box or case,and the intermediate connecting-tubes 22 23 are arranged 5 above thecase. These bars serve as a support for a platform, upon which can bearranged the switch device for regulating the current, if desired.

The ends of the car may be provided with seats 24, preferably runninglengthwise of the car, and leaving a space between the backs for themotor-man, although it is evident that any other arrangement of seatsmay be made.

IVhile any desired form of motor may be used, I preferably use onesubstantially like that indicated in the drawings and claimed moreparticularly in my application, Serial No. 351,338, filed concurrentlyherewith, in which the field-magnets 26 are wound with coils 27 at theircenter and have two armatures 28, each armature carrying a pinion 2!),meshing into a gear-wheel 30, fixed on the axle 2. Of course more thanone motor can be used when it is desired and all be controlled by thesame switch apparatus in the usual way. One reason for using such amotor in connection with my motor-car is that if perchance any accidentshould happen to the motor it can readily be removed from the motor-carwith its axle and another one substituted in its place. To do this it isonly necessary to remove the bolts 30 in the bottom of the pedestals,which hold the axleboxes therein, and disconnect the electricalconnections with the motor, when the axle and the motor carried therebycan be withdrawn.

It is often necessary or desirable to attach life-guards to themotor-car, and I have shown such a guard 31 secured to the block 32,supported on the pin 30 of the pedestal, and as a matter of safety it issometimes advantageous to provide a connecting-rod 33, connecting theguard with the truck. In this way the removal of the pin or bolts 30disconnects the life-guard and allows the motor and axle to be removed,as before stated, the life-guard beingpreferably pivoted to the rodswhen they are used.

Having thus described my invention, what I claim is 1. In a motor-car, atruck the axles of which are connected by the equalizing-bars, the saidbars forming asupport for the battery-box, substantially as described.

2. In a motor-car, the combination, with the axles, of theequalizing-bars, the additional strengthening-bar between the axles, andthe connections between the equalizing-bar and the strengthening-bar,the whole forming a support for the battery-box, substantially asdescribed.

3. In a motor-car, the combination, with the axles, of theequalizing-bars, the said bars lie-- ing provided with friction-pulleysforming a support for the battery-box, substantially as described.

4. The combination, in a motor-car, of the truck, the equalizing-barsforming supports for the battery-box, and a frame'supported on saidtruck and having an opening in the side above the equalizing-bars,substantially as described.

5. In a motor-car, the combination, with the truck the equalizing-barsof which are adapted to support the battery-box, of a framework composedof tubes mounted on the truck and having an opening or space above theequalizing-bars, substantially as described.

6. In a motor-car the frame of which is composed of tubes, a head-blockhaving two recesses in two of its sides for the reception of the doubletubes of the main frame and having a recess in its outer side for thereception of the T-joint supporting the upright tubes, substantially asdescribed.

7. In a motor-car, the combination, with the truck, of a life-guardsecured to the truck by pins or bolts passing through the pedestals andprovided with connecting-rods extending between the guard and truck,substantally as described.

8. In a motor-car, the combination, with the truck-frame havingpedestals, of the axleboxes supported in said pedestals and boltssecuring both the axle-boxes and pedestals, substantially as described.

9. A motor-car the frame of which is composed of tubes, the main frameconsisting of head-blocks having the double tubes connected thereto toform the end portions of the car, the middle connecting-tubes beingarranged above the main tubes on the ends to form a space between theends for the reception of the battery-box, substantially as described.

10. In a motor-car, the combination, with the frame, of a trucksupporting the frame and an axle connected by the truck through theaxle-boxes in the pedestals, whereby the axle and its attached motor maybe removed upon the removal of the pedestal-bolts, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

J'ABEA F. SHAWHAN.

\Vitnesses:

ALBERT BEEBE, CYRUS JOHNSTON.

ICC

